31 citations
,
November 2003 in “Journal of Occupational Health” Thioglycolic acid in hair products may pose reproductive and cancer risks for hairdressers.
November 2024 in “Biophysical Chemistry” Hair structure changes immediately during perm treatment, with initial damage partially restored later.
8 citations
,
January 2009 in “Transactions of the Materials Research Society of Japan” Water-soluble wool keratin can protect human hair from damage during treatments.
5 citations
,
September 2021 in “PubMed” Hair removal methods vary in effectiveness and side effects, with electrolysis being the only permanent solution.
10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
11 citations
,
August 2019 in “PubMed” Hirsutism in women is mostly caused by polycystic ovary syndrome and idiopathic hyperandrogenism.
May 2013 in “CRC Press eBooks” Electrolysis and laser treatments offer more permanent hair removal, but have limitations.
3 citations
,
February 2023 in “Journal of Cosmetic Dermatology” Hirsutism greatly impacts women's mental well-being and finances.
1 citations
,
January 2025 in “JAAD reviews.” Hypertrichosis involves excessive hair growth and needs careful diagnosis and treatment, considering its psychological effects.
20 citations
,
July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
70 citations
,
June 1998 in “Polymer” Permanent waving damages hair by disrupting its keratin structure.
37 citations
,
October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
January 2013 in “Transactions of the Materials Research Society of Japan” CMADK reduces hair damage from bleaching and permanent waving.
9 citations
,
June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
45 citations
,
December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
4 citations
,
August 2014 in “Journal of molecular structure” Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
3 citations
,
January 2007 in “Journal of health science” The enzymatic method can effectively identify chemical treatments on hair.
13 citations
,
September 2017 in “International Journal of Cosmetic Science” Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.
16 citations
,
October 2003 in “Journal of applied polymer science” 2-iminothiorane hydrochloride improves hair waving permanence without damage.
72 citations
,
July 2003 in “Journal of cosmetic dermatology” Frequent hair coloring and styling can damage hair and cause breakage or loss.
January 2013 in “Sen'i Gakkaishi” Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.
1 citations
,
August 2013 in “Springer eBooks” Birth control pills and anti-androgen medications help manage hair growth, acne, and hair loss in women with PCOS.
August 1996 in “Journal of Pediatric and Adolescent Gynecology” The document concludes that PCOS in adolescents is complex and requires comprehensive care to manage its symptoms and associated health risks.
40 citations
,
February 2002 in “International Journal of Dermatology” Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
February 2026 in “Journal of the Korean Society of Cosmetology” Silicone oil viscosity affects hair curling and damage during treatments.
3 citations
,
January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.
November 2025 in “Quality in Sport” Consistent use of natural methods is key for healthy hair and scalp.
4 citations
,
April 1999 in “Dermatologic Clinics” Long-pulsed ruby lasers effectively reduce hair for up to 2 years with minimal pain.
4 citations
,
January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.